Hair stopper



FIG. 1 a perspective view of the claimed design for a hair stopper;

FIG. 2 is a bottom perspective view thereof;

FIG. 3 is a left-side view thereof;

FIG. 4 is a right-side view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof; and,

FIG. 7 is a cross-sectional view along the center of the hair stopper. 

The ornamental design for a hair stopper, as shown and described. 